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CVE-2024-25621 — containerd affected by a local privilege escalation via wide permissions on CRI directory

2026-10-04T05:20:24.929858+00:00

Affected: containerd

containerd is an open-source container runtime. Versions 0.1.0 through 1.7.28, 2.0.0-beta.0 through 2.0.6, 2.1.0-beta.0 through 2.1.4 and 2.2.0-beta.0 through 2.2.0-rc.1 have an overly broad default permission vulnerability. Directory paths `/var/lib/containerd`, `/run/containerd/io.containerd.grpc.v1.cri` and `/run/containerd/io.containerd.sandbox.controller.v1.shim` were all created with incorrect permissions. This issue is fixed in versions 1.7.29, 2.0.7, 2.1.5 and 2.2.0. Workarounds include updating system administrator permissions so the host can manually chmod the directories to not have group or world accessible permissions, or to run containerd in rootless mode.

USN-7983-1 — containerd, containerd-app vulnerabilities

2026-10-04T05:20:24.930286+00:00

Affected: Ubuntu:Pro:16.04:LTS: containerd, Ubuntu:Pro:18.04:LTS: containerd, Ubuntu:Pro:20.04:LTS: containerd, Ubuntu:Pro:20.04:LTS: containerd-app, Ubuntu:22.04:LTS: containerd, Ubuntu:Pro:22.04:LTS: containerd-app, Ubuntu:24.04:LTS: containerd-app, Ubuntu:Pro:24.04:LTS: containerd, Ubuntu:25.10: containerd, Ubuntu:25.10: containerd-app

David Leadbeater discovered that containerd incorrectly set certain directory path permissions. An attacker could possibly use this issue to achieve unauthorised access to the files. (CVE-2024-25621)

It was discovered that containerd did not properly handle the execution of the goroutine of container attach. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-64329)